The STM8S001J3M3TR is an 8-bit microcontroller with 8KB Flash memory, 16MHz CPU and Value line 8-bit MCU manufactured by STMicroelectronics. This device features integrated true Standard Logic, Interrupt, 2-wire Serial Interface, SPI, UART, and a PWM peripheral. It also has 42 I/O pins and up to two 8-bit Timers/Counters. In addition, the device has a Watchdog Timer, Sleep, and a Halt Mode, for conservation of energy. The STM8S001J3M3TR is an ideal choice for applications with moderate computing power and is cost-effective and easy to use.